/// <summary> /// /// </summary> /// <param name="type">位数</param> /// <param name="initialValue">初始值</param> public CrcCcitt(CrcType type, InitialCrcValue initialValue = InitialCrcValue.Zeros) { crcType = type; if (crcType == CrcType.CRC_16) { initialCrcValue = initialValue; this.initialValue = (ushort)initialValue; ushort temp, a; for (int i = 0; i < table.Length; i++) { temp = 0; a = (ushort)(i << 8); for (int j = 0; j < 8; j++) { if (((temp ^ a) & 0x8000) != 0) { temp = (ushort)((temp << 1) ^ polynominal); } else { temp <<= 1; } a <<= 1; } table[i] = temp; } } }
public static extern short TMCRC(short length, byte[] data, ushort seed, CrcType type);
public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { CrcType crc = (CrcType)value; return(crc.GetDisplayName()); }